And

The critically-acclaimed SM-10 flesk microphone with a built-in graphic equalizer. AND The amazing AT-150automatic antenna tuner. AND The GC-5 World Clock to log all the hours you'll put on your new rig Get a pencil right now and fill in the attached entry * blank and start making room for your new ICOM 1' INST A NT SAVINGS You're always a winner with 73 Subscribe now and pay only 519.97 for one year you save over L5 off the cover price Or put over 35 back in your pocket when you sign up for 2...

Features

SENSITIVITY SECOND TO NONE 0 15 V Typ. *SEL CTfVlTY THAT CAN'T BE BEAT1 Bo i 8 pok xtal fitter d ceramic filler for > lOOtfB at -12u Hi Helical resonator front end to combat de sen s & mtemrnocl. Flutte rproof squelch. A utom at ic fre qu e nc y Control separate spkr ampi fiier 'CLEAN EASY*TUNE TRANSMITTER, p to 30W Quic l 50W with additional PA L Pft unbelievably ll Low Pr'ce - -f. . _rr_ ONLY 19 kit, similar to LNGh 34 Wirtdftestsd for low cost & small size Onty 5 8W x 1-5 6 L x 3 4...

Pdz

L Transistor saturation (a) and cut-off (h) make the device useful as a switch. Hie circiiii in (cj is a simple way to switch a loail on and off. amplification. F, is the parameter that tells you the maximum frequency at which the transistor can be used with no performance degradation. i he power dissipation of a transistor is given by the sum of the basecui rent times ihe base-to-emitter voltage, plus the collector current times the collector-to-emitter voltage. The power switched by a...

Ege Virginia

136 6 Jetferson Davis Highway Woodbridge Virgtnta 22191 information 17031 643-1063 Service Department (703 94 3750 M Tti 10 a.m. 6 p.m F TO a.m.-B p.m Sat 10 a m -A p m Older Hours. M-F 9 a.m-7 p.m. Sal 10 a m 4 p.m Salem. flew Hampshire D3Q79 JSfifiB Information & Service' (603J 898-3750 CTKftf I j i 3

Info

Box 1000 Morgan HOI, CA 95037 (408) 779-7363 turned out to be missing some hardware. I phoned Telex and had the parts the next day. I had a very interesting conversion with Telex about their quality control process, and I'm convinced that the several very small problems that I had are the result of my getting the first antenna off the line. The installation of the system went fairly easily We put the antennas and rotator together and then hoisted the whole thing to the top of a 40-fool...

Options

* T> i* COMWAKDfK 2 mirtr XH 154 I. il iTtrtino ' wtfi' Tp -T ,ni WJltWl it iM kHTtsDffl'p rfffc C V* T ber** ffcrnp wti - . * Til. EXPLORE 70 cm Kit 164 - JQqJlM -V1 Ji tpi - JO IW i - 1 'vmntfli 1'' W T IWJ mum DUPJ -. 1 M H Of * Tin WE Hf Timctfw Xtt 734 - Li yilill Pffcfluentr rr iiaui . -f40 20 IS, inmereri< i4a< latir i + 1 4 CO. Powtr Supply Ut f r Rddioi 39 World Renouned Kits from DICK SMITH ELECTRONICS rf*ludttTNCI ii CPC X7 CoPimonder t'.cimpleH wirh power s pplio ciibles Ali...

Fuji Revisited

In November of last year, I told you about the mini-brouhaha that appeared to have developed between the Japanese Amateur Radio League and the folks al AM-SAT. In case you missed that column, heres a brief synopsis When the JAS-1 Japanese amateur satellite was launched last August the JARL renamed the bird Fuji after it was known to be in orbit and operating properly However. at that time the AMSAT folks decided to call the bird OSCAR 12 and then Japan-OSCAR 12 Within a dayh the JARL countered...

Barry International Telex Merchandise Taken On Consignment For Top Prices

Mori day-Friday 9 AM to 6 30 PV Ttujrsoay to 8 P M Salurday ft SLind.iy 10 A M. tc 5 P M Free Parting) AUTHORIZED DISTS MCKAY DYMEK FOR SHORTWAVE ANTENNAS & RECEIVERS fflT LEX Spring Si Station 1 Subwayr BMT-' Prince St. SiatiorT IND-'F Traln-Bwy. Station Comrnefci l Equfpmeni Stocked ICOM, MAXON Midland Standard, Wil son. Yaeso Wo serve municipalities, ncsses. Ciwiii Defense etc Potables, mobile--, repealers We Stock AEA. ARRL. Alpha, Ameco, Antenna Specialists, Astatic, Astron, BU.B& W,...

M Rm

Now you can join the exciting world of packet radio on both VHF and HF bands with a precision tuning indicator , . for an incredible 169.95 You get MFJ's top qualitv clone of the highly acclaimed industry standard TAPR TNC-2. We've made TAPR s modem selectable lor both VHF and HF operation, added ilieir precision 20 segment LED tuning indicator* a TTL serial port, an easily replaceable lithium baLtery for memory back-up and put it all in a new cabinet. If you don't need the luning indicator or...

Etters

I'm writing in response to your Never Say Die editorial of December. 1986.11 is usually an informative and intelligent column, but what I don't understand is your desire to offend CBers with old, tired, recycled Polish jokes. Half of your ranks started out as CBers, atthough most amateurs deny rt, and if CBers didn't upgrade and get their Novice tickets, the Amateur Radio Service would never be able to increase its population. Instead of trying to offend CBers, why not convince those old farts...

Amateur Electronic Supply

Fond du Lac Avenue Milwaukee, Wl 53216 Phone (414) 442-42( WICKUFFE Ohio 44092 28940 Euclid Avenue Phone(216)585 7388 Ohio WATS I 800-362-0290 O LANOO. Fla 32803 621 Commonwealth Ave-Phone (305) 894-3238 Fla, WATS 1 800-432-9424 CLEARWATER. Fla. 33575 LAS VEGAS. Nev. 83106 CHICAGO. Illinois 60630 1898 Drew Stieet Phone(813) 461-4267 No In-State WATS 1072 N. Rancho Drive Phone (702) 647-3114 No In-State WATS EfilCKSON COMMUNICATIONS 5456 N Milwaukee Avenue Phone (312) 31-5181 0(50...

Nmcc

I I Cvi topper iEQHrii UtftiBlk JM NGonn. 1 2 Alum, (Mile or Femilij 22.00 NConn i rCoppttLMikfliFemalii Zi.00 ttjv HI Cop* MjtttfffertHe 54 00 RG 0 95* Suicided Mil Spec RGB ivi Shielded Foam Jl& H Shield fmdi 8 RG213 U Hii w ttlSJitfiG RG214AJIH 5t*-. -Dt- Wwi eddwi 9913 It* Lns Rfil4 e U Tefton Silw RGZ17 U 5 B SOrtm Shield RGZJJ'UMH Spr. Dil & GlNMlShfli KM.i Spec ROTOR CABLE - 8 COND. FJtmaita DtKfiption LODFl, Ppr Ft SC162 2-16 Ga 6 2 Cia Uuf* 3400 36

Common Features

Open collector or data strobe logic outputs Operates from 10-25 volts DC* Reverse polarity protected 4Vi x 6 V* glass board with 44 pin gold plated edge connector * Comes complete with manual and mating connector Add S3,00 PfiH California residents add sales ta* Call or write for information on these signaling products also Model CS-10 DIP relay board packages 10 Dip relays. Model CS-100 . A 19 rack mount thai houses a control card and two CS-10 s. All inputs and outputs available on convenient...

Military Technical Manuals

For old and obsolete equipment, 60-page catalog, 3 Military Technics' Manual Service, 2266 Senasac Ave.,, Long Beach CA 90815. BNBQ45 MARINE RAD to Marcom Canada CH-125 synthesized AM SSB transceiver. 22 channels on 4, 8. and 1 MHz, 125 Watls.12Vdc Never used, list 1*995, asking S1.495 Perry Donham KW10. 70 file 202 North. Peterborough NH 0345B. BN8047 QSLs to order. Variety of styles, colors, card slock. W4BPD QSLs, PO Drawer DX, Cordova SC 29039 BNB260 THEDX'ERS MAGAZINE. Up to-date,...

Fheouenct

Comparison between conventional and spread-spectrum signals. The power density of the spread-spectrum signal is very small compared to conventional modulation formats indeed, the spread-spectrum signal may even be below the noise floor of the receiving system. (a) An ordinary signal in the rfspectrum. Here, ihe bandwidth may be about 3 kHz- (b) A spread-spectrum signal* Bandwidth could be a hundred thousand times wider than the bandwidth of the ordinary signal. Sophisticated computer...

Fwf

No discounts or commissions are available Copy must be received m Peterborough by the fifth of the second month preceding (he cover dale. Make checks payable to 73 Magazine and send to Hope Curler, 73 Magazine, WGE Center, Peterborough NH 03458. Imagine this complete ICOM station as the center of attention in your new shack Yes, we're giving it all away in 73's Instant ICOM Sweepstakes Here's what you could win The ullra-compact 1C 735 all-band, all-mode HF transceiver with 12 tunable memories,...

Official Rules

1 *r d.r, -lunal nliyfiwm or a 3J xS'pit-tir ol Mff 'u'iij prml - njpn addiBH ABd tip OQdr. EfOfr toften ufdu mli but nwlodi cm 17 vpuatdytu T3't Instant icom oft-ulaun ijctmiimrni 7i > j North Pelfib* rau.eb, NH illi a Fjitt ft be n . rived towr rfran March 11 HH7 TV draw m 5 y.jQ tr VW hy Ay 3U l'iH A0cmriti bivum Hh property ui Mffldicur Radio whlicbit rrvi , nitlutn fjf,iniih( iLirn dod iJdii .' 1 ik -Winm-I J WiBiiJCf v iJ < x mlt ctni in * rasi-iom l .- - im jatnn, all entries tc-(...

If M Then Next

290 REM RECEIVE ROUTINE 300 GET 2,B IF THEN 80 310 E ASC(B ) IF B< 1 OR B> 31 THEN 80 320 3 F FL THEN B5-CHRS(RC(B)) GOTO 340 330 BS CHR RC(B+31)) 340 IF FL AND (B 27) THEN FL 0 G0T0 80 345 IF B 31 THEN FL 1 G0T0 80 370 IF T 0 THEN POKE 56577,0 T l PRINT PRINTTRANSMIT MODE RETURN 371 IF PEEK(673) AND 1 THEN PRINT PRINT STILL SENDING 372 IF PEEK(673) AND 1 THEN 372 373 POKE 56577,32 PRINT PRINTRECEIVE M0 DEn T 0 RETURN 380 IF PEEK(665) 236 THEN POKE 665,72 PO KE 666,53 PRINT PRINT100 KPM...

Kgk

Tions are made on the bottom side of the connector. It is a good idea to mark the top of the connector, since it is possible to nsen it either way- The computer or the interface could possibly be damaged by upside-down insertion. The only thing left to do now is to get on the air and start enjoying RTTY. 3 REM * SHOESTRING RTTY SOFTWARE * 4 REM * FOR COMMODORE 64 * 5 REM * BY DAVID OLIVER W90DK * 10 OPEN 2,2 0,CHRS(101 +CHRS(16) 20 POKE 56579,32 POKE 56577,32 30 FL 1 M 0 T 0 70 PRINT...

That

Tfffm& No persotal cbechu jccupted Pf'Cts 60 nat trKluite smpQifi UPS COD fm S2.35 per pjcirjge Wt ccs M subj+ct to ctt e mitwti d or L7t) rpaMn. PfctfL-cfs re nc so tor et W Aufhorjjetf tefums are sutyfrci ro ff siocktng nn h titiitrtg tee ind cred t wffl be tssuea for uie un yO f neri utffdlase IGE uRp T tht m& tt ftc t iws rtjv n-'tf ta de-' copy ct i w& r itty ta pinchase ca i cusiomer s& vtce ai m S43 1063 Af d U Oe turmstfed Vp - ' tV- -. mclJ - r '' * .' . Jtr 'it r iPrl...

Gp

Header information available to those who want to do traffic analysis. Look for details when the polf results are announced. Before I leave the subject of the poll, there were many comments along with the responses, both about the poll and about packet radio. IHII be putting some of those in the column as space permits m the months ahead Thanks to everyone a month early, and especially to the forwarding BBS sysops who put up with ali the extra traffic- The one common fault1 I found in the...

Meter Soapbox

Recalled a contest > n *vh+Ch 1 worked so hard and so pOcrii, CohdUions were simply inriui We'll certainly welcome ihe return o) ihe un& pot maximum Had no plans to erstei ire conies' us- participle After two hours I Uec ded 10 go tor i .ma had tais of luni Thanks fo' me contest* The greatest was the Gig number of e*olic DX ii-.in.--ns i worked < iuntnes i have' never heard hetote in a contest The antenna rotor was torn because or 45-kph winds Co drtioni . ere quite g-od coruiJde'i j The...

Asb

COM of America has been making great strides toward a full product line of UHF radio equipment in recent years. Along with their IC-1271A (reviewed in September, 1986), ICOM also offers the IC-120r a mobile, 1-Watt, synthesized transceiver for the 1260-1300* MHz range. received the 120 and Ihe 1271A for review at the same time, and intended to run some tests using bcih in the low-power mode. My plan was thwarted by a blown front end in the 120. so an alternate setup was arranged for the...

Mrn

T he APS-1 may he powered by I he power adaptor fincludetl or mav alternate he powered from vehk fe or other 13-17 V DC source. in addition to sv. itchable outputs for mo aniennasT ihe also contains a 6-13 volt regulated DC power supply. This feature is designed for powering items su< h as preamplifiers* VHP fl IF converters, etc bur ma also be used whenever a low-current stabilized variable voltage source is required. Power Requirement (AC) 117V 10 AC 50 60 Hz 15 Watt Power Requirement (DC)...

Vyk

II he uomeST scores don I havi> you envious of the winning siatrons then perhaps ihe equipmen survey in Tac-'- 3 < vh get your moutn towatenng To many the coniesr meant adding a new qpumry ro ih t DX couni totals or iheu Worked Ail Zones To others i1 meant their 5Cm s tai- for ',VAS we s.irt . I c -iies records broken some new re- 3E- -.taD-fisiied Re 1er to Tabie -i thf honor roil list of rifT -t rncprd riokler On beri.tit of ontest chairman Gify est MWhE w Thiink earh of you who look rhe...

Bird Model

Bird Etectronic Corporation has introduced the model 4421 rf power meter, a programmable, microprocessor-based instrument that measures forward and reverse power to 1 kW from 1 8 MHz to 1 GHz, The unit features an accuracy of 3 . Two sensors cover the frequency range each sensor carries a calibration profile in a reprogrammabie memory. An optional interface provides for remote operation from a GPIB* or RS-232-equipped computer For more information about the model 4421, check Reader Service...

Ever Say

Of 48, which certainly seems much more equitable and logical. Should we also recognize the class of license in some way I've seen some suggestions that Novices and Techs have a one multiplier, Generals a twoT and Advanced and Extras a five Ten seems more reasonable for Advanced, but five is okay, I don't see anything wrong with that. Let's see, that would bring me up to 380 shares Eminently reason* able, really. Should there be a bit of extra credit for hams who have made substantia*...

Graphics Services

Rich aid Clarke Menage-Sue B Flanagan. Dan Cr at eau. Deborah Smith Wayne Graen Enterprises is a division of internahonal D.M.t Group. 73 Amateur flsd'O ISSN 0745-0& X) is published monthly by WGE Punishing, Inc., r division of Wayne Green Enierprifies. inc WGE Ceni r, Paler bofough NH 03458-1104 Entire contents 1987 by WGE Publishing. Inc f 0 part of IhiS pubti-zano may be reproduced w-Jlxxj' innert pMjrm.-ssion Irom the publisher

Bk

At this point, send a signal (dots, dashes, or carrier) for about four seconds. The robot then answers (for example). R UR RST IS 55 55. and asks, NW PSE MY RST RST BK, and expects that you will give a report (RST) at least twice, ending with a well-spaced letter K. The robot then answers, R R TKS FER (RST) and terminates the QSO by saying good-by in one of these languages, selected according to your callsign English, Italian. Spanish, French, German. Swedish, Finnish. Japa-

To

Pans placement diagram for the switch. Fig, J. Complete TX RX voltage switching circuit. not the case tor older radios like the Standard model ti03. which is very prone to cl 1-oscillation. I chose to permanently connect the + 12-V-dc line to the PA, driver, and pre-driver stages, since the dc voitage reguiator is not easy to switch. i then placed an ammeter in series with the line supplying 12 V dc to the remaining stages to cheek the current drawn by the rest of the transmitter...

Transmit Converters

Kj 65-E MOUL ROAD'HILTON NY 14468-9535 Phone 716-392-9430 Hamtramcs1 '5 t neutered t racism artr at a fraction of the cost of comparable units Very Low Noise 0 76B VHF. O.SdB UHF High Gain l3-20dBr depending on freq Wide Dynamic Range to resist overload Stable new-type dual-gate GaAs FET Specify tuning range desired 26 30. 46-56. 137 150 t SO' 172 210-230,400-470 or B00-96QMI4*. 6M,2M. 220 880 630 UHF 980 730 (Also available for commercial bands ) TCXO and atal oven available 2Wcont_ Up o3W...

Arr V Dg

On any ell-designed preamplifier Avoid those units lhat cannot meet this specification, especially if you live in a high-rf area or do a fair amount of contesting. In reviewing the measured data, it's interesting to note that the ARR 432VDG can accept a signal almost ten times stronger than the 220VDA before it goes into compression. The 23-dB gain figure for the 50 PB might sound a bit fantastic, but remember that the circuit employs a 3N204 MOSFET al 50 MHz. where gain and performance are a...

Assembled

Two radio ports 7910 single-chip modem 300 and 1200 bauds Enhanced command set Multi-color status LED s Supports RS-232 and TTL computers Active HF bandpass filter Tuning indicator option 12 volt DC operation Premium quality case 6 w x T h x T d The TNC-220 has the familiar TAPR command set and AX.25 Level 2 Version 2 protocol running on a Z-80 processor with 32k bytes of EPROM and 16k bytes of battery-backed RAM. A Zilog 8530 SCC performs all packet HDLC in hardware. The terminal port can...

Roundup

On November 3, 1986, the United States, ai the stroke of a pen, became 17.000 people bigger Huh, you ask That was when, after more than 11 years of bureaucratic paper shuffling, the Northern Marianas (meaning all those islands except Guam) became a U.S. Commonwealth and the inhabitants became U.S. citizens The KG6s, KG6Ts, KH(5sP and KH2s on Tinian, Saipanh and Rota (to name the largest three glands affected) became U,S. hams. So send your congratulations make Governor Pedro P. Tenorio an...

Recordbook

Parishes ' you must follow the mobile activity going on The most amazing thing with this award has been the increasingly big mobile activity. The performance of the mobile setups is astounding It has even been possible tor stations in the most southern part of Sweden to work mobite stations north of the Arctic Circle on the 80-meter band, a distance of 1 r5QQ kilometers (940 miles). Summertime and Midnight Sun have not really favored the propagation on these low frequencies, but the avid award...

Satellite Display Systems

Feedback Although this j already the fifth column to appear in print, only a single one has actually hit the stands as I sit down to write this one Already however, 1 am beginning to get some fmtiat feedback, much of which I hope to incorporate as we go along. One persistent theme in the early lei'ers concerns the business o actually displaying the saiellite images usually expressed as a request tor recommendations as to the best display system for the satellite station There are many...

Slow

* AT-440 internaf auto antenna tuner (80 in 10 ml * AT-250 external auta tuner (160 m-10 m) * AM3Q compact mobile antenna tuner (160 m -10 m> (F-232C 1C-10 level translator and modem IC kil * PS-50 heavy duty power supply PS-430 PS-30 DC power supply SP-430 external speaker * MB-J30 mobile mounting bracket * YK-88C 88CN 500 Hz 2 70 Hz CW filters YK-885 88SN 2 4 kHz 1 B kHz SSB titters * MC-60A 8G 85 desk microphones MC-55 (8JJi mobile microphone * HS-5 6 7 headphones* SP 40 5G6 mobile speaker...

Meter Ssb Championship Results

DL6FBL, N5TR, and K5LZO 20-Meter World Champions Superbowi Syndrome' That was the or der o zwy as dedicated conlesters work wide chose io ta*e lo the airwaves tofitead Mormall, we ould haif* scheduled the 30- or 160-meter events on thts football week* end but I he NFL announced ih r s< ecn le rnucM later in ti seftson lhan rfn v normally do had already scheduled trie conieshng evnnts OespiTe Ihe odii* DL6FBL literally talked 3 way with World Championship honor-, His, single-operator OX eniry...

Ysy

Simplified block diagram of the spread-spectrum communications ink. This * 'frequency-hopping'1 system transmits and receives over a bandwidth that is many times that of the data. The actual spectral distribution of the signal is controlled by a predetermined code that must be the same for both transmitter and receiver. Fig. 5, Propagation time is presently an insurmountable problem. Ranging from minutes, hoursr and days to years. gene rations, and millenia, the solution to this problem...

Stt

Hot two 7-dlglt autodial memorial A umpie mod *natrt t you to recet the mhj a *** cJ i jfi nC mm Adi in horiorx* Waoaztnw Toe p ra i jfi nC mm Adi in horiorx* Waoaztnw Toe p ra 600 LAKEDALE ROAD, DEPT. H COLFAX, H.C 27235 The SS-32HB is a new hybrid sub-audible encoder plucked from Communications Specialists1 Hothouse. It has grown through a cross of the time tested SS-32, the subminiature SS-32M and space age micro circuitry This programmable 32 tone encoder measures a scant .5 x 1.0 x ,15...

Pcb Design

Project PCB is the name of new CAD software offered by DASOFT Design Systems. The package assists in the design of multilayer printed circuit boards with schematic capture, automatic routing, and board layout (a pioi rouline generates camera-ready art). After a schematic is entered using the mouse-driven editor, pin connections are defined. Next, the board itself is designed by defining the size and shape of the substrate,, ocation and size of cutouts, and the footprint and placemen of parts. A...

Avcom Sta-70d Manual

A 5 digil 7 element LED frequency readout that display5 center f'equency m MHz SPAN ontroii. ire dth of ttie spectrum being displayed INTENSITY controls the brightness oi ihe display, HORIZ & VERTICAL POSITION these two knobs control the place ment oi the display on the screen. SWEEP RATE controls the rate the analyzer sweeps through the frequency band set by spar and the rale at which the analyzer sweeps Ihe display AUDIO DEMOD turns the audio feature on or oft and co irois the volume ot...

Standard Features

Autopalch Reverse Patch, W 0 & inhibit Dia) Pulse Corr verier AuioGialer Phone Jine & ,1over ihe air command modes. Virtually afl functions may be turned on off remoiely iouc1 Tone Contra a T meoui Time , Patch Timeout, TX Inhibit Reset, Patch & Reverse Patch inhibit Reset. P L ON OFF (w optlonal P L board), etc. Up to 6 Auxiliary Functions. More TTC300, Full 18 Digit Decoding with Crysia Controlled Decoder IC Touch Tone Mute Kerchunk Kilter Unique Courtesy Tones Timeoui Warning Tones...

Dq

VARACTOfl TUN WO DIODE man BB-KM * pii 1 PARTS SPECIAL Campuldrifcd bdllcr Icrn-p CQnt Dlltr PCB w, P.S, PCB. relay . Trsn f G flli 110. VACUUM VARIA BU UCSL250 ennlnf.s p SSOpf 3KV U 5. VOLTAGE REGULATOR lab TLTB3. i SV-135V TOOma 1.25 SOtJDSTATERELAr 10A3 UVDC control 5 SIC C ftAMtC VAPtAftlf CAP 2 5 7.5 p 5 SI. -70 Si 50 KCVSOARO MATfHX 4i4 b 2 POWER SUPPLV 25V 5A. 0V 7A,m SAr V t Omwtl DJP CAPS . lur 50V 10f S t 50, lOO.'112 CHIP CAP tOOOpi 60V 20 5 MAGNET WIRE MS 100 it J*3. 200 S5 HV...

Nevada Caps

Nevada Communications variable capacitor kits. Portsmouth, England, has announced two high-power variable capacitors for amateur use. The TC-250 is a 13-250-pF capacitor and the TC-500 gangs two sections together tor up to 500 pF both models have a breakdown voltage of 7.6 kV and a piate air gap of 2 mm. The capacitors are approximately 30 and 40 for the TC-250 and the TC-500, and both are available at a lower price in kit form. For complete details, please check Reader Service number 213,

Available Now I

Orders to US and Canada add 5 of total 2 min SIO max) Florida residents add 5 sales tax. COD fee S2. Giant 3 day flea market * Exhibits license exams Free bus service CW proficiency test * Door prizes Flea market tickets and grand banquet tickets are limited. Place your reservations early, please. A maximum of 3 spaces per person (non-transferable). Tickets (for all 3 days) will be sold in ADVAfiCE OMLY, P o spaces sold at gate, Vendors MUST order registration ticket when ordering flea market...

Hy Gain Antennas

394S M.-UJ -eie to 393STH l)x hfieTO 395s Explorer 14 10 '5 20rr 2d3s j Btament merer Beam 20SS elemenl 2 metef Se& m IhS 11 ulftn ftt 2 mcier fleam SNB6 Beam Ba ai* Y2S 2-meter Vertical v45 44 mhi Yfffcdl FRG 60 General Coverage Receiver AH mode 15DfcHz-30MHz rt 151 51 leeiro 929 00 L W354 54 I hotter Dac 1575 00 Sflqm not Wv z ' Sthpi - J from dory to i. .i1

Icom

Orhrr Act tssoriei - cwiinued Regular SALE GC-5 World clock 9195 89 6-mefer VHF Portable Regular SALE IC-505 3 10W 6m SSB CW portable 549.00 4B9 BP-15 AC Charger 14 00 EX-248 FMun L(MQ Leather case 39.50 VHF UHF multi-mode* Regular SALE IC-551D BOW 6-meter SSB CW 799 00 719 BC-10A Memory backup 9 50 IC-271A 25W 2m FM SSB CW 859 00 749 AG-20 Internal preamplifier G4 00 IC-271H 10UW 2m FM SSB CW 1099 00 969 AG-25 Mast mounted preamplifier , 95 00 IC-275A 25W 2m FM SSB CW w ps 1199.00 1049 IC-471A...

Tower Climbing Safety Belts

And accessories- Free specs Avatar Magnets W9JVF, 1147 N Emerson Indianapolis IN 46219-2929. BN& 458 FJND OUT what else you can hear on your genera -coverage transceiver or receiver Join a shortwavt radio listen ing club Complete information on major North American clubs and sample newsletter 1 Association of North American PadLO Clubs. PO Bo* 462, Northiield MN 55057, BNB464 HAMLOG COMPUTER programs 17 modules uto-logs. sorts 7-band WAS DXCC FuIMeature edilmg Ap* pie 14,95. IBM or CP M...

Alara

On the 30th of June, 1975. a group of women interested in amateur radio met in Melbourne and formed the Ladies' Amateur Radio Association, now Australian) LARA Norma VK3AYL (now VK2DJO) was foundation presjdent With more than 200 members today, ALARA s main aim has been to encourage the active participation of women in amateur radio ALARA has an award, contests, trophies, numerous nets, and a quarterly newsletter. The official net is on 3.580 MHz at 1030 UTC Mondays (1000 during daylight saving...

Tv

ICOM America. nc.t 2380-176th Ave N , Behevue. WA 98004 3150 Premier Drive, Suite 126. Irving JX 75063 1777 Phoenix Parkway. Suite 201, Atlanta. GA 30349 ICOM CANADA, A Division of ICOM America, Inc., 3071 - 5 Road, Unit 9, Richmond, B.C. V6X 2T4 Canada All slated specifications are approximate and subject to change without nolsce or obligation AIM COM radio significant itceod FCC regula lions limiting spuhCHj* emissions. 1 2GHz7B6 Explore 1.2GHz with ICOM. Only ICOM offers the most complete...

Wheres my

WKmt Vou tiiven't swn the FREE DICK SMITH ELECTRONICS catalog' Or did someone steal your copy again Afrar ail, wt> o can rnist 148 coiorfu I paga c ra mmed with 1000 of tort rone goodies ranging from hits & compon& ni to computers d radiocontroiled cars. The selection is incredible, the values are even betier' Top it sH off with our enchjsive 15-page lectronc data section, and yoo II Keve more than a catatog. more than a relPTflnce a totally entertainpn exper> ence tof the electronic...

New

Word Js spreading ' Nothing matches th KRP-5000 for total performance and valu*. Not GE not av n Motorola.' PF peftorrnance really coun s n ough repeater environ-merits s. the KRP-5 OO receiver gwes you 7 helical resonators 12 poles of IF filtering, arid a precise S nrnui logger squelch *ith automatic threshold switch mg The Iransrmtter Qwes ynii clean FMOS FET power Enjoy high perforrnance opera-ion with ferrule piogrammabil-11y sequential tone paging 200-number autodial remote Squelch selling...

Sri Lanka

Calvin Fernando 4S7CF 15 6, Albert Perera Avenue Nugegoda Sri Lanka (Welcome to Calvin 4S7CF of the nation of Taprobane (as it was known to the ancients), Serendip (as it was known later), Ceylon (as known in modem times until 1972). and the Republic of Sn Lanka. as it is known now a 25,332 square-mile istand in the Indian Ocean off the SE coasf of India. Calvin is a Vice-president of the Radio Society of Sri Lanka and is active on 20 when the band is open. (He has afl 50 U.S states confirmed.)...

Wge

If you re looking for Greener pastures, 73 Amateur Radio is looking for an experienced editor who has a strong background in amateur radio. The qualified applicant must have an enlightened mind fitled with creative ideas and be able to shape the editorial focus of the magazine, Up-to-date knowledge of ham technology is an absolute necessity. If you understand the marketplace and can report on it without editorial bias if you write clearly and concise ly. sharing our absolute reverence for...

For Portable And Solarpowered Stations

Wired i Tested Lisi jjr ce i209 95 Amateur n i - 5,1 79 95 Wired i Tested Lisi jjr ce i209 95 Amateur n i - 5,1 79 95 LOW 5 mA Current drain. Miniature size' LigTi I weight All metal, shielded enclosure On board Lithium Battery RAM backup. On-toard watchdog for reliability Siandard DB 25 Connectors Output signal indicates Connected Status Docs no require squeiched udio. 8K FAM-32K ROM Remote Command Mode for Unattended operation ard jfe command .ockout ior secunty Commands compati le wilh our...

Rsd

Yaesus 2 meterFT-290R and 6-meter FT-690R Mark II Series are the perfect all-mode . - traveling companions. On the road, simply snap on the heat sink, JHBH apply 12 volts of power, and youVe got a 25-watt - r mobile station. FT-690R 10watts . '-mBffi - V On foot, attach the optional C-cell battery pack and shoulder strap, and take off with 2,5 watte jp output You get around fast on SSB, CW and FM memories, dual VFOs, LCD display, automatic repeater shift into memory register, offset inning...

Help Wanted

Pakratt 232

Now that we've got 73 grow ing for a change , I have one of the more exciting at leas for a real ham career opportunities around. If you know a ham or two who might fit the bill, cue em in I'm looking for a ham who enjoys getting on the air with new ham gear so we can test new equipment and report on it in 73. I'm looking for a ham who won't be fazed by packet or OSCAR perhaps someone who can help me set up stations on Caribbean islands for mmi-DXpeditions. Of course there are always special...

Header Wars

There is a lot going on in packet this month, but unfortunately, most of n can be classified as short-lived phenomena That's the type of thing where there ts a lot of arguing going on now, but the fight will be over within a month now equals mid December . If I write it up now, you won't see it until February, and you either won't care or it could start up the controversy all over again. Now I'm not one to stir up controversy for controversy's sake . but wait a minute, didn't I read something...

Minded Amateur

Veiy few amplifiers have generated the excitement and emotional involvement associated with the powerful LK-800A Amplifier. We tamed the commercial export version of this rock-crusher to the FCC type accepted 1500 watt output model. It is now offered to the discriminating Amateur. For 1986 Amp Supply has taken one more step in the thoughtful evolution of the classic LK-500ZB. We think you'll agree that the front panel is smashing, and that the LK-500ZB will be one of the most attractive pieces...

Testons Checkman Mini

Tesion s card-size Checkman Mini fits in your shirt pocket and gives immediate voltage and resistance measurements with built-in autoranging. The unit can handie up to 20 megohms and 500 V ac or dcr displaying the value on a lOmm-friigh LCD. The Checkman Mini also features an audible continuity checker 2nd diode tester, The Checkman Mini retails for S35 for complete information, please check Reader Service number 217 Bird s model 442 T rf power meter. 18 73 Amateur Radio February, 1987 built-in...

You Too Can Be An SOB

K9AZG thinks that hams should be heard but not seen put your left hand on the Cailbook and repeat after me As president 3nd organizer of a new fraternity aimed at recapturing the traditional policies of hamming. I invite those few remaining radio amateurs who shun personal contact wiih other hams to join an international net known as the Solitary Operators' Brotherhood We are not to be confused, however, with chronic QRMers sometimes referred to by our initials. When you hear an irate operator...

Icom Ic

Photo A The Larsen 1300-MHz collinear antenna with NMO magnetic mount in position on the Honda roof. nated 'Accessory Socket and aflows remote T-R keying of the 120, supplies remote 13.8 V dc and allows for a discriminator meter connection incidental the remote keying connection would be very useful for a 1260-MHz remote base link or repeater link. An external speaker jack is provided as well An unusual feature is the RIT control, You don't see these on FM transceivers on lower frequencies, but...

The

All Mode Operation FM, SSBr CW, Packet Wideband Reception from 138 to 174MHz Packet Compatible with front panel DATA switch 2-Meter Transceiver with the features of an HF DDS Direct Digital Synthesizer When you're ready to experience all the multlmode excitement 2 meters offers today s amateur, you're ready for the glamorous new IG275. Its FM capabilities are unlimited, Its wideband receiver coverage 138 to 174MHz, Tx 140.1 to 150MHz Includes public services and NOAA weather bands, plus CAP...

Ooking West

Bill Pasternak WASfTF 28197 Robin Av amp nue Saugus CA 91350 The other night, I sat down to write an article solicited by my friend Kris Partridge G8AUU. As you can note Dy his callsign, Kris is a resident of the United Kingdom, more properly, of Teddington, a London suburb The story of how we met is an interesting oner and also an important one tor this month's column. It was tn late 1981 when I re ceived a note from another British amateur who was also destined to become a friend. Andrew...

Bove Amd Beyond

Putman KT2B 84 Burn ham Road Morris Plains NJ 07950 Last month I discussed important parameters to consider when selecting a preamplifier for VHF and UHF applications, specifically MDS minimum discernible signal , IMD intermoduiation distortion , gam. and 1-dB compression point, Alt are interrelated, especially the latter three. Excessive gain can result in poor IMD performance and a tow 1-dB compression figure. Conversely, a welkJe-signed preamplifier may not have a very high gain...

Edited B Y Perr Y Donna M Kw

ACCORDING TO A STORY m Sweden Cafiing DXers1 the Soviet Umon has stopped jamming Russian-language broadcasts from China's Radio Beijing. Sino-Soviet relations have been warming up lately and this seems an attempt to prove to the Chinese that the USSR is playing according to the rules. The Russians have also recently stopped jamming transmissions coming from Albania and South Korea, Although not considered a jamming transmitter the Soviet over-the-horizon radar affectionately known as the...

At

12 VDC input terming - alfows dtrect mobile or external power suppfy operation. When 12 VDC is applied, power output increases to 5 watt si Heavy-duty final amplifier and heat sink The die-cast rear panel assures reliable operation. With the optional 12-volt PB-1 battery pack, the TH-205AT provides 5 W output. The standard 8.4 volt PB-2 provides 2 5 W output 300 rnW low power , Large, easy-to-read LCD display. Frequency, offset, memory channel TXh RX. and battery indicator. Frequency UP DOWN...

Swakia

Mike Stone WB0OCD PO Box H Lowden IA 52255 NEW 73 SPEC-COM WAS SSTV CONTEST FEB. 23-MAR. 1 Let's get slow-scan V moving again This past fall and wtnter have taken their toll, with low activity levels on SSTV around 14.230 MHz and elsewhere. Today's modern-style color converters have discouraged some black-and-white operators from staying active. With spring just around the corner, the Spec-Corn Journal will be sponsoring its annual Worked All States SSTV Contest, the only regularly sponsored...

Superscaf

Aftrontcs, tnc,, has announced SuperSCAF, a digitally tuned switched-capacitor audio filter for CW, SSB, R i TY, and other nar rowband modes. The unit incorporates a crystal-controlled 14th-or-der elliptical bandpass filter whose upper and lower cutoff frequencies are programmed via a front-panel humbwheel switch Cutoff points may be selected from 300-3,500 Hz in 100-Hz steps. The initial skirt slope is 150 ciB per octave with an overal stop band attenuation of at least 51 dB Passband ripple is...